What are the key environmental challenges, including pollution, deforestation, and water scarcity?

The United States, the world's third most populous country in 2025 (347 million inhabitants), will be sixth in 2100 (421 million). World Population ; 1. India, 1,419,316,933, 6. Nigeria ; 2. China, 1,407,181,209, 7. Brazil ; 3. United States, 342,034,432, 8. Bangladesh ; 4. Indonesia ... May 3, 2023 ... In April 2023, the United Nations (UN) announced that India was set to take over from China as the most populated country in the world. ... most vibrant democracies, emerging as a confident middle-income country. ... Today, Indonesia is the world's fourth most populous nation and 10th largest economy ... Apr 23, 2019 ... China has been the world's most populous country for a long time: back in 1750, it had a population of 225 million, around 28% of the world ... Mar 17, 2025 ... Key Takeaways · India and China will likely remain the most populous countries till 2100. · However several African countries will climb the ... May 2, 2023 ... India is now the world's most populous country. Can its economy keep up? ... The United Nations (UN) estimates that India has become the world's ... Apr 20, 2023 ... The United Nations is spearheading a new global initiative on digital learning and skills, targeting marginalized children and youth to close the digital ... It is an independent republic and a member of the G20, the international forum that brings together the world's major economies. Indonesia is the largest UN ... Jul 11, 2022 ... "India is projected to surpass China as the world's most populous country during 2023," the U.N. said. The Indian government's census for 2011 ...